Unified Communications Engineer

2 weeks ago

Cochin, Kerala, India National Oilwell Varco Full time ₹ 1,20,000 - ₹ 1,80,000 per year

The Unified Communications Engineer plays a critical role in the configuration, optimization, and support of the organizations voice and collaboration infrastructure, spanning cloud platforms (8x8, Fuze, Teams) and legacy systems (ShoreTel). This role requires hands-on expertise in VoIP routing, SIP, call flow design, and network interactionespecially in hybrid environments. Engineers work closely with network, security, and operations teams to ensure performance, availability, and security.

Key Responsibilities:

  • Engineer and maintain hybrid communication systems including Direct Routing for Teams, 8x8/Fuze voice, and ShoreTel PBX.
  • Configure and troubleshoot SIP trunking, dial plans, call policies, and call routing logic across platforms.
  • Conduct packet captures and diagnose call quality issues using tools such as Wireshark and SBC logs.
  • Collaborate with network engineers to implement or fine-tune QoS, VLAN tagging, and DSCP marking for voice traffic.
  • Participate in system migrations from legacy PBX to UCaaS platforms.
  • Build and maintain SBC configurations (Ribbon, AudioCodes) for Teams Direct Routing or SIP trunk integration.
  • Enforce UC security policies including TLS/SRTP, encryption standards, and E911 compliance.

Required Qualifications:

  • 4 to 7 years of UC or VoIP engineering experience in an enterprise environment.
  • Strong understanding of VoIP protocols (SIP, RTP, SRTP) and network concepts (QoS, TCP/IP, VLANs).
  • Experience with Microsoft Teams Voice, 8x8, Fuze, and ShoreTel Director/Connect.
  • Ability to interpret call flow traces, configure SBCs, and apply performance tuning recommendations.

Preferred Certifications:

  • Microsoft Certified: Teams Voice Engineer Associate
  • 8x8 Certified Engineer (ACSE)
  • Cisco CCNP Collaboration
  • CompTIA Security+
  • AudioCodes/Ribbon SBC Certification

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